Choose a version:
41% The original file has 140606 bytes (137.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 58164 bytes (56.8k, 41%).

After GZIP compression these minified files vary in size:
Boot
  26323 bytes (25.7k)
CDN, direct link
Baidu
  23793 bytes (23.2k)
CDN, direct link
cdnjs
  23735 bytes (23.2k)
CDN, direct link
gzip -6 (default)
  23646 bytes (23.1k)
local copy
cdnhttps
  23625 bytes (23.1k)
CDN, direct link
gzip -9
  23615 bytes (23.1k)
local copy
libdeflate -12
  22959 bytes (22.4k)
local copy
7zip -mx=9 -tgzip
  22676 bytes (22.1k)
local copy
pigz -11 -n
  22573 bytes (22.0k)
local copy
kzip -s0 -rn -b3
  22570 bytes (22.0k)
local copy
Zopfli
  22547 bytes (22.0k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.1.min.js

You will automatically get the smallest AngularJS 0.9.1 file, ETag caching is available and
if your browser doesn't support GZIP decompression then the uncompressed version will be sent.

Currently best Zopfli settings

Save 1078 bytes by using my AngularJS 0.9.1 Zopfli version instead of the best available CDN (4.78% smaller than cdnhttps, 22547 vs. 23625 bytes):
You can use my super-compressed files for whatever purpose you like as long as you respect the library's original license agreement.
There are no restrictions from my side - but please avoid hot-linking if you run a high-traffic website.

These command-line settings yielded the best compression ratio so far (Linux version of zopfli-krzymod):
zopfli --i100000 --mb8 --mls32 --bsr14 --lazy --ohh

(found November 26, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 32  --mls32
block splitting recursion 14  --bsr14
lazy matching in LZ77 yes  --lazy
optimized Huffman headers yes  --ohh
initial random W for iterations 1  --rw1
initial random Z for iterations 2  --rz2

Verify file integrity

After decompression, my uncompressed files are identical to the original ones:

MD5:
curl --silent --compressed https://code.angularjs.org/0.9.1/angular-0.9.1.min.js --location | md5sum
d613087a75aa29cecd2c482816a05586  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.1.min.zopfli.js.gz | md5sum
d613087a75aa29cecd2c482816a05586  -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.1/angular-0.9.1.min.js --location | sha1sum
896253991304d8daef33f19aa3260a83ee1878df  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.1.min.zopfli.js.gz | sha1sum
896253991304d8daef33f19aa3260a83ee1878df  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 26323 bytes d613087a75aa29cecd2c482816a05586 March 18, 2015 @ 10:01
cdnjs 23735 bytes d613087a75aa29cecd2c482816a05586 March 28, 2014 @ 14:15
cdnhttps 23625 bytes d613087a75aa29cecd2c482816a05586 December 24, 2015 @ 07:32

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 23793 bytes eb901fc8036230b62fe0462ee40067e9 only whitespaces differ June 5, 2014 @ 10:05

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

1.6.6, 1.6.5, 1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6.0,
1.5.11, 1.5.10, 1.5.9, 1.5.8, 1.5.7, 1.5.6, 1.5.5, 1.5.4, 1.5.3, 1.5.2, 1.5.1, 1.5.0,
1.4.14, 1.4.13, 1.4.12, 1.4.11, 1.4.10, 1.4.9, 1.4.8, 1.4.7, 1.4.6, 1.4.5, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0,
1.3.20, 1.3.19, 1.3.18, 1.3.17, 1.3.16, 1.3.15, 1.3.14, 1.3.13, 1.3.12, 1.3.11, 1.3.10, 1.3.9, 1.3.8, 1.3.7, 1.3.6, 1.3.5, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0,
1.2.32, 1.2.31, 1.2.30, 1.2.29, 1.2.28, 1.2.27, 1.2.26, 1.2.25, 1.2.24, 1.2.23, 1.2.22, 1.2.21, 1.2.20, 1.2.19, 1.2.18, 1.2.17, 1.2.16, 1.2.15, 1.2.14, 1.2.13, 1.2.12, 1.2.11, 1.2.10, 1.2.9, 1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0,
1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0,
1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
0.9.19, 0.9.18, 0.9.17, 0.9.16, 0.9.15, 0.9.14, 0.9.13, 0.9.12, 0.9.11, 0.9.10, 0.9.9, 0.9.8, 0.9.7, 0.9.6, 0.9.5, 0.9.4, 0.9.3, 0.9.2, 0.9.1, 0.9.0

The project site contains an overview how well these versions were compressed.
Other interesting projects are BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS, UnderscoreJS and Vue.

Changelog

Best Zopfli parameters so far:
Size Improvement Parameters Found
22547 bytes -2 bytes zopfli --i100000 --mls32 --bsr14 --lazy --ohh November 26, 2015 @ 11:16
22549 bytes -2 bytes zopfli --i10000 --mls32 --bsr14 --lazy --ohh October 21, 2015 @ 12:54
22551 bytes -4 bytes zopfli --i1000 --mls32 --bsr14 --lazy --ohh September 24, 2015 @ 08:41
22555 bytes -1 byte zopfli --i1000 --mls2048 --bsr13 --lazy --ohh September 7, 2015 @ 22:35
22556 bytes -2 bytes zopfli --i1000 --mls2048 --bsr12 --lazy --ohh September 7, 2015 @ 22:33
22558 bytes -1 byte zopfli --i1000 --mls1024 --bsr9 --lazy --ohh September 7, 2015 @ 22:32
22559 bytes -3 bytes zopfli --i1000 --mls512 --bsr12 --lazy --ohh September 7, 2015 @ 22:32
22562 bytes -2 bytes zopfli --i1000 --mls512 --bsr14 --lazy --ohh September 7, 2015 @ 22:32
22564 bytes zopfli --i100 --mls8192 --bsr11 --lazy --ohh September 7, 2015 @ 16:10

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on June 16, 2016 @ 14:39.

Heatmaps

This Zopfli heatmap visualizes how compression changes when modifying the --bsr and --mls parameter.
Cell's contents is the best filesize achieved (in bytes, hover with mouse over cells to see number of iterations).

Good parameters are green, bad are red. The best and worst are bold as well.
The brightness of the blue background color indicates how many iterations were processed:
10,000 or 100,000.
bsr \ mls
2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768
bsr \ mls
2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768
22579 22579 22578 22583 22587 22586 22587 22596 22583 22585 22581 22587 22584 22584 22576
22561 22570 22580 22565 22562 22571 22570 22566 22577 22556 22569 22566 22563 22579 22579
22576 22587 22569 22559 22558 22557 22558 22563 22559 22557 22563 22567 22578 22582 22565
22562 22558 22571 22564 22572 22574 22577 22562 22561 22557 22578 22564 22560 22577 22586
22558 22572 22559 22567 22556 22573 22573 22574 22566 22558 22556 22556 22557 22569 22565
22561 22559 22555 22558 22571 22567 22555 22560 22558 22557 22556 22560 22556 22577 22571
22562 22558 22564 22562 22559 22559 22560 22557 22558 22561 22559 22563 22560 22577 22584
22561 22572 22569 22557 22558 22557 22565 22557 22555 22557 22555 22566 22556 22579 22586
22566 22558 22559 22559 22564 22563 22564 22559 22556 22562 22555 22556 22556 22577 22581
22567 22558 22568 22558 22560 22568 22560 22561 22566 22557 22555 22556 22563 22569 22572
22557 22571 22569 22556 22547 22560 22559 22558 22561 22558 22557 22566 22556 22570 22560
22567 22571 22571 22558 22559 22557 22555 22555 22559 22557 22556 22559 22560 22566 22576
22561 22558 22558 22558 22558 22559 22560 22555 22560 22555 22555 22559 22562 22568 22579
22561 22571 22567 22566 22565 22559 22560 22555 22555 22557 22557 22556 22556 22569 22562
22568 22572 22565 22558 22563 22559 22555 22558 22556 22556 22557 22559 22557 22568 22564
22568 22556 22558 22559 22558 22559 22560 22563 22557 22555 22555 22556 22560 22571 22573
22566 22572 22565 22561 22558 22558 22558 22557 22563 22560 22556 22560 22567 22564 22562
22561 22571 22568 22559 22566 22559 22561 22559 22556 22560 22556 22557 22557 22567 22579
22558 22558 22570 22561 22559 22559 22558 22557 22557 22559 22555 22557 22555 22566 22578
22567 22572 22570 22558 22559 22559 22556 22555 22558 22562 22555 22556 22555 22563 22564
22561 22558 22571 22560 22560 22559 22558 22557 22557 22557 22556 22557 22556 22580 22572
22567 22577 22567 22558 22558 22559 22555 22555 22561 22557 22556 22556 22556 22577 22561
22561 22572 22569 22558 22557 22558 22557 22557 22558 22558 22554 22558 22558 22570 22568

Due to the Monte Carlo design of my search algorithm, not all parameters have reached the same number of iterations yet:
Iterations Min. Bytes Reduction Coverage
100 22559 bytes 100%
1,000 22551 bytes -8 bytes 100%
10,000 22549 bytes -2 bytes 100%
100,000 22547 bytes -2 bytes 0.29%
1,000,000
10,000,000

KZIP has far less options available for tuning/optimization. I only played around with the number of blocks (parameter -n):
Blocks Min. Bytes Compared To Best Zopfli Compared To Best KZIP
22644 bytes +97 bytes (+0.43%) +74 bytes
23047 bytes +500 bytes (+2.22%) +477 bytes
22642 bytes +95 bytes (+0.42%) +72 bytes
22570 bytes +23 bytes (+0.10%)
22582 bytes +35 bytes (+0.16%) +12 bytes
22601 bytes +54 bytes (+0.24%) +31 bytes
22630 bytes +83 bytes (+0.37%) +60 bytes
22660 bytes +113 bytes (+0.50%) +90 bytes
22681 bytes +134 bytes (+0.59%) +111 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
Algorithm Program Parameters Size Compared To Best Zopfli
ZPAQ (Wikipedia) zpaq zpaq -method 69 19876 bytes -2671 bytes (-11.85%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 20339 bytes -2208 bytes (-9.79%)
Brotli (Wikipedia) brotli brotli -q 11 20921 bytes -1626 bytes (-7.21%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 21373 bytes -1174 bytes (-5.21%)
LZMA2 (Wikipedia) xz xz -9 22160 bytes -387 bytes (-1.72%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 22782 bytes +235 bytes (+1.04%)
ZSTD (Wikipedia) zstd zstd -19 22808 bytes +261 bytes (+1.16%)

Detailled Analysis

I wrote a DEFLATE decoder in Javascript. Click the button below to start a client-side analysis of the smallest gzipped files (may take a second):


Notes: pigz is a fast open source multi-threaded implementation of gzip written by one of the original authors of gzip.
However, when using compression level 11, pigz actually switches to the slower Zopfli algorithm and isn't multi-threaded anymore.
KrzyMOD's extensions to Zopfli offer the highest level of configuration and is therefore used for my brute-force search.
Ken Silverman wrote the closed-source KZIP compression program and Jonathon Fowler ported it to Linux.
Defluff was created by Joachim Henke; DeflOpt is a tool by Ben Jos Walbeehm.

website made by Stephan Brumme in 2015 and still improving in 2017.
all timestamps are displayed in central european time. see my changelog.
no flash, not even images or external css files - and everything squeezed into a single html file.
which was handsomely compressed before releasing it into the wild internet - obviously.

please visit my homepage and my blog, too.
email: minime (at) stephan-brumme.com